Astraware Sudoku - It's a different kind of Zen

Step-By-Step Solution:

Initial Grid

                    
First step - add in all possible valid pencilmarks.




For row 6, number 6 is only possible in cell (2,6)









For row 4, number 9 is only possible in cell (6,4)









For row 3, number 9 is only possible in cell (4,3)









For row 8, number 9 is only possible in cell (2,8)









Number 4 is the only value possible in cell (1,7).









For row 5, number 9 is only possible in cell (1,5)









For row 7, number 9 is only possible in cell (7,7)









For row 5, number 4 is only possible in cell (6,5)









For row 9, number 4 is only possible in cell (7,9)









For row 3, number 4 is only possible in cell (3,3)









For row 3, number 6 is only possible in cell (6,3)









For row 1, number 6 is only possible in cell (3,1)









For row 7, number 6 is only possible in cell (4,7)









For row 1, number 4 is only possible in cell (8,1)









For row 1, number 3 is only possible in cell (1,1)









Number 8 is the only value possible in cell (1,6).









Number 7 is the only value possible in cell (1,2).









Number 8 is the only value possible in cell (2,2).









Number 2 is the only value possible in cell (2,5).









Number 1 is the only value possible in cell (3,4).









Number 3 is the only value possible in cell (3,5).









Number 5 is the only value possible in cell (5,6).









Number 1 is the only value possible in cell (4,6).









Number 3 is the only value possible in cell (7,6).









Number 2 is the only value possible in cell (5,7).









Number 5 is the only value possible in cell (3,7).









Number 1 is the only value possible in cell (6,7).









Number 7 is the only value possible in cell (2,9).









For row 9, number 3 is only possible in cell (9,9)









For row 8, number 7 is only possible in cell (6,8)









Number 8 is the only value possible in cell (6,1).









Number 7 is the only value possible in cell (5,3).









Number 2 is the only value possible in cell (4,1).









Number 7 is the only value possible in cell (7,1).









Number 5 is the only value possible in cell (4,2).









Number 2 is the only value possible in cell (7,2).









Number 1 is the only value possible in cell (8,2).









Number 8 is the only value possible in cell (5,4).









Number 2 is the only value possible in cell (9,4).









Number 7 is the only value possible in cell (8,4).









Number 7 is the only value possible in cell (4,5).









Number 5 is the only value possible in cell (8,5).









Number 8 is the only value possible in cell (7,5).









Number 5 is the only value possible in cell (7,3).









Number 8 is the only value possible in cell (9,3).









Number 1 is the only value possible in cell (9,5).









Number 2 is the only value possible in cell (8,8).









Number 8 is the only value possible in cell (3,8).









Number 5 is the only value possible in cell (9,8).









Number 2 is the only value possible in cell (3,9).









Number 8 is the only value possible in cell (4,9).









Number 5 is the only value possible in cell (6,9).